Gravitational Annealing of Colloidal Crystals

Abstract:

A silica colloidal crystal obtained by centrifugation at 9 G for 2 days in water was annealed by additional stronger centrifugation at 50 G for 5 days. The number of the striations observed in the colloidal crystal under crossed polarized light decreased at some parts in a growth container after the additional centrifugation, while the number also increased at the other parts. The decrease probably shows the shrinkage of the stacking disorders under high gravity, while the increase probably shows the production of new stacking disorders.

• Periodical: Defect and Diffusion Forum (Volumes 323-325)
• Pages: 555-558
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.323-325.555
• Online since: April 2012
• Authors: Yoshihisa Suzuki, Jin Endoh, Atsushi Mori, Tomoki Yabutani, Katsuhiro Tamura
• Keywords: Centrifugation, Colloidal Crystal, Gravitational Annealing, Lattice Disorder, Stacking Disorder

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